Henry hays



UNITE STATES PATENT FFIQE.

HENRY HAYS, 0F NEW YORK, N. Y.

STAVE-MACHINE.

To all whom t may concern:

Be it known that I; HENRY HAYs, of the city and State of New York; haveinvented a certain new and useful Improvement in Machines for DressingStaves; and I do hereby declare that the following is a full, clear, andexact description of the construction and operation of the same,reference being had to the annexed drawing; making part of thisspecification, wherein- Figure l, is a plan and Fig. 2, is a verticallongitudinal section of my said machine.

Similar marks of reference indicate the same parts.

In machines for dressing staves that have heretofore been constructed,one or more of the following difficulties have arisen; varying length ofstaves could not be entered in the machine without loss of timeresulting from the stroke of the machine requiring to be as great as thelongest stave; crooked or winding sta-ves could not be properly dressedunless suiciently thick on account of the parts not accommodating suchwind7 and a slight wind is not injurious because it is straightened intrussing the barrel; beside this if the knives take an equally thickshaving from the outer and the inner faces of the stave, the outersurface, in view of a thick shaving being removed; will not be so smoothas if a thin smoothing shaving were removed; and again where thin stavesare dressed there may be portions where both knives will not touch;hence the dressing should continue on the outside or convex part of thestave; and the cost, and extent of room heretofore required have been asource of trouble in practically operating machines.

The nature of my said invention consists simply vin the arrangement ofpressure rollers with peculiarly formed cutters whereby I am enabled toavoid all the 'difficulties before mentioned; that is to say any stavecan be passed into the machine regardless of its length; the wind ortwist of split staves does not interfere with the dressing; a thinshaving is taken from the outer or convex side under all circumstanceswhether the stave is being operated on by the other cutter or not.

My machine is compact, cheap, durable and reliable.

In the drawing a; a, is a frame of wood or metal of suitable size andshape.

Z), is a cross shaft carrying a roller c; which in turn is connected bylong cogs f. f with the roller cl on the shaft c; and both rollers areto be driven by a gear wheel g, on the shaft b, and a pinion it, on theshaft z' with a pulley or its equivalent k; to which motive power isapplied. The boxes of the shaft e, slide in the side frames o; 0, andthe two rollers (c and cl) are kept toward each other by springs r, ortheir equivalents acting upon slings 20, p.

s, is a cross piece beneath the springs r, and above the lower ends ofthe slings p; s, is a similar brace shown as broken open in Fig. l, theends of which rest on the journals of e, at which point the screws g, g,act to regulate the pressure for driving the stave through the machine.

u, is a concave cutter to dress the convex or outer side of the staveand e, is a convex cutter to remove the wood from the inner side of thestave: These cutters are sustained in the frames o; o, by set screws 0c,and a metallic wedge w, serves to keep the cutters apart as well as toadjust the distance the one is from the other by sliding the wedgeendwise previous to tightening screws m.

15 is a fixed mouth piece of a concave form corresponding to the knife uand setting between the same and the roller c.

The operation is as follows: Lay the stave on the bed Z, with thesmoothest side down, press it into the rollers which being revolvedcarry the stave through; the inclination of the bed Z; insures theconvex side being dressed by the cutter a, and the mouth piece z5,prevents too thick a shaving being removed; the cutter or knife e,dresses out the inner side of the stave making the same uniform inthickness by the removal of a thick or thin shaving, and this is doneregardless of the length of stave and without loss of time, because theattendant follows one stave through by the feed of the next.

m; is an incline onto which the completed stave falls.

Having thus described my said invention I remark that I do not claimfeeding rollers, as I am aware that the same have been used in planingmachines; neither do I claim concave cutters in themselves but I am notaware of any previous instance in which adjustable concave and convexcutters; provided with the mouth have been combined with feed rollersadjusted in their pressure outer side of the stave under allcircumstances, and split out more or less from the inner side to reducethe stave to a uniform thickness as specified.

In Witness whereof I have hereunto set my signature this, fifth day ofAugust, 1859.

HENRY HAYS,

on the stave by the means set forth, and these been applied in themanner and for the purpose specified therefor.

What I claim as my invention and desire 5 to secure by Letters Patentis- Dressing staves by a continuous operation regardless of length orthickness, by the combined action of the feed rollers 0, d, and IW'itnesses: cutters u, lv, when said parts are arranged LEMUEL W.SERRELL,

10 as set forth to remove a shaving from the i CHAs. H. SMITH.

